Improvement in irrigation water use efficiency: a strategy for climate change adaptation and sustainable development of Vietnamese tea production

Nguyen Bich Hong, Mitsuyasu Yabe

研究成果: ジャーナルへの寄稿記事

7 引用 (Scopus)

抄録

Irrigation is indispensable to overcome insufficient rainfall and to achieve a stabilized yield for tea production. As the severe scarcity of water resources because of climate change, water conservation through efficient irrigation has turned into a vital strategy for tea sector in solving this rising challenge. This paper analyzes irrigation water use efficiency of small-scale tea farms in Vietnam and identifies its determinants applying stochastic frontier analysis. Results showed that under decreasing returns to scale, the mean irrigation water use efficiency was 42.19 %, indicating the existence of substantial water waste. If farmers become more efficient in using water, saving 57.81 % of irrigation water is possible unaccompanied by reducing the observed output. The factors affecting tea farms’ irrigation water use efficiency were investigated by Tobit model. Gender, water shortage awareness, soil and water conservation practice, off-farm income share, extension services access and well water utilization showed significant influence on the efficiency of irrigation water. The study’ results provide insights to policymakers in implementing better water resource management amid climate change.

元の言語英語
ページ(範囲)1247-1263
ページ数17
ジャーナルEnvironment, Development and Sustainability
19
発行部数4
DOI
出版物ステータス出版済み - 8 1 2017

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tea
water use efficiency
irrigation
sustainable development
climate change
water
efficiency
farm
returns to scale
soil conservation
climate change adaptation
Sustainable development
Water use
Tea
Climate change
Irrigation
conservation
gender
water resource
income

All Science Journal Classification (ASJC) codes

  • Geography, Planning and Development
  • Economics and Econometrics
  • Management, Monitoring, Policy and Law

これを引用

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abstract = "Irrigation is indispensable to overcome insufficient rainfall and to achieve a stabilized yield for tea production. As the severe scarcity of water resources because of climate change, water conservation through efficient irrigation has turned into a vital strategy for tea sector in solving this rising challenge. This paper analyzes irrigation water use efficiency of small-scale tea farms in Vietnam and identifies its determinants applying stochastic frontier analysis. Results showed that under decreasing returns to scale, the mean irrigation water use efficiency was 42.19 {\%}, indicating the existence of substantial water waste. If farmers become more efficient in using water, saving 57.81 {\%} of irrigation water is possible unaccompanied by reducing the observed output. The factors affecting tea farms’ irrigation water use efficiency were investigated by Tobit model. Gender, water shortage awareness, soil and water conservation practice, off-farm income share, extension services access and well water utilization showed significant influence on the efficiency of irrigation water. The study’ results provide insights to policymakers in implementing better water resource management amid climate change.",
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AU - Yabe, Mitsuyasu

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